question4.java

java课程的资料以及实验的代码

class ComputeRange
{
	//the method to check whether the 'number' is in range
	public static boolean check(int number,int lowRange,int upRange)
	{
		if ((number>=lowRange)&&(number<=upRange)) return(true);
		else return(false);
	};
	
	public static void main(String args[])
	{
		int length=args.length;
		if (length<3) 
		{
			System.out.println("invalid number of arguments\n");
			System.exit(1);
		}
		int number,lowRange,upRange;
		number=Integer.parseInt(args[0]);
		lowRange=Integer.parseInt(args[1]);
		upRange=Integer.parseInt(args[2]); // obtain 3 arguments
		if (lowRange>=upRange)
		{
			System.out.println("invalid low range and uprange\n");
			System.exit(1);
		};
		System.out.println(check(number,lowRange,upRange));
	}
}